The Stax Airbow SR-SC1 is a very rare version of the Stax SR-404 only available in Japan.  It was dual cryo treated as all of the Airbow products and not many of these were made.  

They are in very good condition except for the headphone cable, but they are fully functional.  I replaced the foam inside the earcups and added mesh inside the earpads.  I added pictures of the cable to try and show the damage, fully holds up but if I had to guess, it has been run over by a chair or something similar.  It works perfectly and it could be replaced with a SR-407 cable which can still be bought from Stax, last I heard. 

Original box is included with the SR-SC1 markings but it is only in fair condition.